// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart=2.9

/*@testedFeatures=inference*/
library test;

int getInt() => 0;
num getNum() => 0;
double getDouble() => 0.0;

void test1(int t) {
  var /*@type=int**/ v1 = t = getInt();

  var /*@type=num**/ v2 = t = getNum();

  var /*@type=int**/ v4 = t ??= getInt();

  var /*@type=num**/ v5 = t ??= getNum();

  var /*@type=int**/ v7 = t /*@target=num.+*/ += getInt();

  var /*@type=num**/ v8 = t /*@target=num.+*/ += getNum();

  var /*@type=int**/ v10 = /*@target=num.+*/ ++t;

  var /*@type=int**/ v11 = /*@type=int**/ t /*@type=int**/ /*@target=num.+*/ ++;
}

void test2(num t) {
  var /*@type=int**/ v1 = t = getInt();

  var /*@type=num**/ v2 = t = getNum();

  var /*@type=double**/ v3 = t = getDouble();

  var /*@type=num**/ v4 = t ??= getInt();

  var /*@type=num**/ v5 = t ??= getNum();

  var /*@type=num**/ v6 = t ??= getDouble();

  var /*@type=num**/ v7 = t /*@target=num.+*/ += getInt();

  var /*@type=num**/ v8 = t /*@target=num.+*/ += getNum();

  var /*@type=num**/ v9 = t /*@target=num.+*/ += getDouble();

  var /*@type=num**/ v10 = /*@target=num.+*/ ++t;

  var /*@type=num**/ v11 = /*@type=num**/ t /*@type=num**/ /*@target=num.+*/ ++;
}

void test3(double t) {
  var /*@type=num**/ v2 = t = getNum();

  var /*@type=double**/ v3 = t = getDouble();

  var /*@type=num**/ v5 = t ??= getNum();

  var /*@type=double**/ v6 = t ??= getDouble();

  var /*@type=double**/ v7 = t /*@target=double.+*/ += getInt();

  var /*@type=double**/ v8 = t /*@target=double.+*/ += getNum();

  var /*@type=double**/ v9 = t /*@target=double.+*/ += getDouble();

  var /*@type=double**/ v10 = /*@target=double.+*/ ++t;

  var /*@type=double**/ v11 =
      /*@type=double**/ t /*@type=double**/ /*@target=double.+*/ ++;
}

main() {}
